WAPATO, WASHINGTON

Monthly Total Growing Degree Days

(458959)

Base Temperature = 40 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200602
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
Months with 5 missing days or less use mean for missing day(s)
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 988.97 a 971.85 a 905.72 a 663.10 a 259.50 f 56.50 8.50 3594.64
1949 0.00 33.00 175.00 490.00 789.98 a 837.41 a 1034.50 1012.15 a 771.43 b 276.42 a 166.61 b 38.00 5624.50
1950 3.00 40.00 77.50 k 233.00 g 602.00 822.00 1078.00 1081.38 a 804.00 332.00 99.50 28.00 4889.88
1951 19.00 47.50 117.00 462.00 669.50 867.00 1093.00 1017.00 758.00 365.50 41.00 8.50 5465.00
1952 0.50 23.00 125.79 e 500.36 b 699.00 804.00 1084.48 a 997.88 b 800.00 547.50 22.50 9.50 5614.51
1953 130.00 76.50 184.40 b 315.00 555.42 a 668.50 1017.83 a 959.00 741.00 431.50 121.80 e 43.50 5244.45
1954 23.50 57.50 102.00 323.00 670.50 687.32 b 954.50 863.50 646.00 260.50 160.00 14.50 i 4748.32
1955 0.00 u 7.00 l 75.90 b 208.27 d 529.87 d 635.50 g 923.50 995.50 690.50 343.50 68.50 3.00 3838.54
1956 1.55 a 7.00 157.00 493.00 772.50 721.50 1110.00 1013.18 a 730.00 358.00 59.00 61.00 5483.73
1957 0.00 39.50 146.00 433.50 790.50 859.00 948.00 905.00 792.50 350.09 b 62.00 34.50 5360.59
1958 38.50 160.50 140.00 343.00 876.50 977.50 1190.50 1127.50 678.00 411.00 149.00 21.00 6113.00
1959 25.00 39.00 162.00 442.50 544.50 805.00 1079.00 904.50 642.50 401.50 106.00 30.50 5182.00
1960 2.00 41.50 246.00 384.50 556.00 873.50 1223.95 c 907.00 732.00 440.72 a 88.00 2.50 5497.66
1961 60.50 115.00 215.00 391.50 627.00 989.50 1159.50 1188.00 656.00 338.50 21.00 24.00 5785.50
1962 51.50 54.00 135.50 486.50 542.00 820.50 1038.00 896.00 760.00 339.50 127.50 19.00 5270.00
1963 10.00 57.00 196.50 308.00 666.50 831.50 675.00 i 1032.50 879.00 461.00 132.50 2.00 4576.50
1964 16.50 36.50 126.00 311.00 585.00 790.50 1004.50 881.00 654.50 388.00 38.00 19.00 4850.50
1965 15.00 74.50 187.50 462.50 615.00 856.00 1076.00 1031.50 669.50 466.50 173.50 17.00 5644.50
1966 6.50 26.50 207.00 444.50 726.00 761.50 985.50 1040.00 809.00 398.50 111.00 35.50 5551.50
1967 64.50 115.00 134.50 233.00 654.50 911.00 1102.00 1162.50 870.50 442.00 99.00 23.00 5811.50
1968 45.50 130.50 220.50 326.50 635.50 852.50 1129.50 910.00 750.00 304.00 70.00 21.50 5396.00
1969 0.00 0.00 184.50 356.00 743.50 972.00 1010.00 921.50 731.50 305.00 101.50 6.50 5332.00
1970 0.50 58.00 175.00 257.00 638.00 970.50 1106.00 1053.00 589.50 324.00 79.00 14.50 5265.00
1971 78.00 72.00 83.50 321.50 727.50 711.00 1107.50 1176.50 594.50 360.50 78.00 9.50 5320.00
1972 20.00 59.00 257.50 276.50 780.50 885.00 1081.00 1105.00 605.00 386.00 68.00 51.00 5574.50
1973 1.00 42.00 230.50 461.50 742.00 878.00 1173.00 1059.50 782.50 401.50 52.00 40.00 5863.50
1974 86.00 45.50 190.50 381.50 564.50 966.50 1017.00 1096.00 795.00 405.00 127.00 23.00 5697.50
1975 13.50 18.00 100.50 309.00 644.80 a 818.50 1200.00 947.50 805.00 366.50 113.00 50.50 5386.80
1976 34.50 52.00 134.00 335.00 668.00 743.00 1042.50 952.00 851.00 397.50 131.50 3.00 5344.00
1977 10.00 100.50 181.00 575.00 530.00 1003.50 1061.00 1215.00 659.00 397.00 107.00 62.00 5901.00
1978 5.50 27.50 303.50 376.50 584.50 924.50 1104.50 984.50 673.50 395.00 43.50 9.50 5432.50
1979 0.00 36.00 247.00 368.00 748.50 927.00 1153.50 1067.00 845.00 491.00 40.50 28.00 5951.50
1980 0.00 3.76 b 112.50 g 491.50 671.00 738.46 d 1074.50 917.00 745.00 404.00 114.11 b 0.00 l 5159.33
1981 36.54 c 103.19 a 258.50 369.23 d 609.00 706.00 958.50 1100.50 697.50 287.50 86.50 12.40 a 5225.35
1982 11.00 85.00 122.00 218.50 586.50 892.00 990.50 981.50 653.00 262.00 22.00 14.50 4838.50
1983 28.50 66.50 235.50 327.50 707.50 739.00 898.00 1018.00 581.50 326.50 107.50 0.00 5036.00
1984 13.00 15.00 204.00 258.50 468.00 718.00 1039.00 957.50 642.50 280.00 48.62 a 0.00 4644.12
1985 0.00 19.00 149.00 434.00 711.00 863.00 1235.50 950.50 596.50 333.00 72.50 0.00 5364.00
1986 3.50 75.00 281.00 315.50 641.50 958.00 905.00 1118.50 598.00 417.50 100.00 0.00 5413.50
1987 3.00 33.50 187.50 490.00 747.00 887.00 998.00 991.00 799.00 419.50 127.50 25.00 5708.00
1988 1.00 78.50 169.00 417.50 581.50 791.00 1044.50 984.50 691.00 568.00 111.50 5.00 5443.00
1989 0.00 z 3.00 127.50 455.00 628.00 885.50 1006.00 946.50 736.50 355.50 148.50 3.00 5295.00
1990 39.50 55.50 213.50 510.50 560.00 814.00 1139.00 1051.50 881.50 296.00 145.00 5.50 5711.50
1991 18.00 94.50 98.00 379.00 566.50 697.50 1055.50 1086.00 796.00 396.50 45.50 30.50 5263.50
1992 37.00 68.00 313.00 417.50 748.00 994.50 1011.50 1026.00 640.00 416.50 65.00 0.00 5737.00
1993 2.50 7.00 116.00 314.00 748.00 767.00 824.50 931.00 719.50 433.00 34.00 2.00 4898.50
1994 10.00 14.00 237.00 478.50 697.50 761.00 1166.50 1035.50 817.00 372.50 24.00 31.50 5645.00
1995 2.50 125.00 158.00 313.00 670.00 767.50 1026.00 860.50 797.00 339.00 109.50 21.00 5189.00
1996 20.00 35.50 164.00 370.00 484.50 768.50 1083.00 968.50 619.50 325.00 36.00 0.00 4874.50
1997 8.00 46.50 168.00 304.50 687.00 750.00 983.50 1064.00 730.50 327.50 104.50 3.50 5177.50
1998 8.50 29.00 208.50 367.50 0.00 z 842.00 1202.50 1070.00 864.50 331.50 114.00 26.50 5064.50
1999 15.50 b 38.00 156.50 334.50 516.50 769.50 933.50 1058.00 0.00 z 335.00 164.50 39.50 4361.00
2000 8.00 11.91 a 129.50 433.50 601.00 817.50 1015.50 1002.00 683.50 322.92 a 35.00 0.00 5060.33
2001 0.00 1.00 210.00 318.50 664.00 741.50 1057.50 1070.00 803.00 359.50 110.50 13.00 5348.50
2002 20.50 44.00 98.00 347.00 562.00 864.50 1118.50 971.00 712.50 355.50 96.50 12.50 5202.50
2003 33.50 37.00 252.00 346.00 598.00 915.50 1152.00 1034.50 805.00 507.50 45.50 0.00 5726.50
2004 15.00 21.00 288.50 425.00 614.00 857.50 1116.00 1074.00 709.00 406.00 46.50 10.00 5582.50
2005 12.00 24.50 0.00 z 375.00 709.00 761.00 1087.50 0.00 z 696.50 394.00 34.50 1.00 4095.00
2006 23.50 19.00 0.00 z 346.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 388.50
Period of Record Statistics
MEAN 20.22 49.80 179.36 377.78 647.44 834.93 1059.34 1011.87 727.10 376.43 87.30 17.92 5417.76
S.D. 25.13 35.62 58.03 81.17 87.05 89.67 86.66 83.56 82.16 65.21 42.10 16.51 315.60
SKEW 2.18 0.97 0.36 0.12 0.19 0.19 -0.19 0.27 0.05 0.67 0.17 0.88 -0.23
MAX 130.00 160.50 313.00 575.00 876.50 1003.50 1235.50 1215.00 881.50 568.00 173.50 62.00 6113.00
MIN 0.00 0.00 75.90 208.27 468.00 668.50 824.50 860.50 581.50 260.50 21.00 0.00 4644.12
NO YRS 56 57 54 57 56 57 57 57 57 57 58 56 48